Thermally Reprocessable Self-Healing Single-Ion Conducting Polymer Electrolytes

Sangho Lee, Juhwan Song, Jinhan Cho, Jeong Gon Son, Tae Ann Kim

Research output: Contribution to journalArticlepeer-review

Abstract

Self-healing polymer electrolytes are essential for overcoming the limitations of liquid and solid electrolytes by offering superior mechanical robustness, enhanced safety, and repeated processability. Herein, we present thermally reprocessable and self-healing thermosets for solid polymer electrolytes using sulfonylimide-based anionic monomers and thermo-reversible Diels-Alder chemistry. Six different types of linear copolymers are synthesized by varying the chemical structures of furan-containing monomers and the proportion of electrolytic components. Then, bismaleimide cross-linkers are introduced to form thermally reversible cross-linked networks. We investigate the effect of the comonomer ratio and monomer structure on the thermomechanical and electrochemical properties of these polymers. Furthermore, we evaluate the mechanical and ion conducting properties after up to 30 thermal reprocessing cycles. Our findings demonstrate the potential of these thermosets as promising candidates for high-performance solid polymer electrolytes in lithium-ion batteries.

Original languageEnglish
Pages (from-to)7433-7442
Number of pages10
JournalACS Applied Polymer Materials
Volume5
Issue number9
DOIs
Publication statusPublished - 2023 Sept 8

Bibliographical note

Funding Information:
We gratefully acknowledge financial support from the Korea Institute of Science and Technology (KIST) Institutional Program and a National Research Council of Science & Technology (NST) grant from the Korean government (MSIT) (CRC22031-000).

Publisher Copyright:
© 2023 American Chemical Society.

Keywords

  • polymer electrolytes
  • recyclable thermosets
  • self-healing
  • single-ion conducting membranes
  • sustainable polymers

ASJC Scopus subject areas

  • Process Chemistry and Technology
  • Polymers and Plastics
  • Organic Chemistry

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